# git rev-parse -q --verify 9c1a41149230e5e2d48c8948943306b8c0c9f242^{commit}
9c1a41149230e5e2d48c8948943306b8c0c9f242
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9c1a41149230e5e2d48c8948943306b8c0c9f242
# git clean -qxdf
# < git log -1
# commit 9c1a41149230e5e2d48c8948943306b8c0c9f242
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Fri Mar 23 15:53:38 2018 +1000
# 
#     powerpc/64s: Fix i-side SLB miss bad address handler saving nonvolatile GPRs
#     
#     The SLB bad address handler's trap number fixup does not preserve the
#     low bit that indicates nonvolatile GPRs have not been saved. This
#     leads save_nvgprs to skip saving them, and subsequent functions and
#     return from interrupt will think they are saved.
#     
#     This causes kernel branch-to-garbage debugging to not have correct
#     registers, can also cause userspace to have its registers clobbered
#     after a segfault.
#     
#     Fixes: f0f558b131 ("powerpc/mm: Preserve CFAR value on SLB miss caused by access to bogus address")
#     Cc: Paul Mackerras <paulus@ozlabs.org>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-gcc --version
# < git log --format=%s --max-count=1 9c1a41149230e5e2d48c8948943306b8c0c9f242
# < make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  defconfig
# make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  
/kisskb/src/arch/mips/vdso/Makefile:32: MIPS VDSO requires binutils >= 2.25
/kisskb/src/arch/mips/vdso/Makefile:32: MIPS VDSO requires binutils >= 2.25
/kisskb/src/drivers/auxdisplay/img-ascii-lcd.c: In function 'malta_update':
/kisskb/src/drivers/auxdisplay/img-ascii-lcd.c:109:5: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/auxdisplay/img-ascii-lcd.c: In function 'sead3_update':
/kisskb/src/drivers/auxdisplay/img-ascii-lcd.c:207:5: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:146:32: warning: 'levelspread[<U5640>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<U5640>]' was declared here
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here
/kisskb/src/arch/mips/vdso/Makefile:32: MIPS VDSO requires binutils >= 2.25
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
FIT description: Linux 4.16.0-rc2-g9c1a411
Created:         Sat Mar 24 23:15:06 2018
 Image 0 (kernel@0)
  Description:  Linux 4.16.0-rc2-g9c1a411
  Created:      Sat Mar 24 23:15:06 2018
  Type:         Kernel Image
  Compression:  gzip compressed
  Data Size:    4324738 Bytes = 4223.38 kB = 4.12 MB
  Architecture: MIPS
  OS:           Linux
  Load Address: 0x80100000
  Entry Point:  0x80850290
  Hash algo:    sha1
  Hash value:   1fc2eeee4fd4418e6b1d7900e0dfbb5b6190730d
 Image 1 (fdt@boston)
  Description:  img,boston Device Tree
  Created:      Sat Mar 24 23:15:06 2018
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    3602 Bytes = 3.52 kB = 0.00 MB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   dabc84017c5ea1c23fdb5a4b25d185bdf81faa6a
 Image 2 (fdt@ni169445)
  Description:  NI 169445 device tree
  Created:      Sat Mar 24 23:15:06 2018
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    1871 Bytes = 1.83 kB = 0.00 MB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   51b89b31605ee62038c8468c429af091dfc75ec7
 Default Configuration: 'conf@default'
 Configuration 0 (conf@default)
  Description:  Generic Linux kernel
  Kernel:       kernel@0
 Configuration 1 (conf@boston)
  Description:  Boston Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@boston
 Configuration 2 (conf@ni169445)
  Description:  NI 169445 Linux Kernel
  Kernel:       kernel@0
  FDT:          fdt@ni169445
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mips-defconfig_mips
# Build took: 0:01:21.793229